32
1
Constant-level oiler
2
Vent plug
3
Connection elbow of the constant-
level oiler
4
Screwed plug
5
Bearing bracket
1. Pull out the vent plug (2).
2. Hinge down the reservoir of the constant-level oiler (1) from the bearing bracket (5) and
hold it in this position.
3. Fill in oil through the hole for the vent plug until the oil reaches the connection elbow of
the constant-level oiler (3).
4. Completely fill the reservoir of the constant-level oiler (1).
5. Snap the constant-level oiler (1) back into its operating position.
6. Fit the vent plug (2) again.
7. After approximately 5 minutes, check the oil level in the glass reservoir of the constant-
level oiler (1).
The oil reservoir must be properly filled at all times to provide an optimum oil level. Repeat
steps 1 - 6, if necessary.
8. To check the function of the constant-level oiler (1), slowly drain some oil via the screwed
plug (4) until air bubbles can be seen in the oil reservoir.
6.1.3 Shaft seal
Shaft seals are fitted prior to delivery.
Observe the instructions on dismantling ( Section 7.4.6 Page 48) or reassembly ( Section
7.5.3 Page 51) .
If applicable, fill the reservoir of non-pressurised external fluid in accordance with the general
arrangement drawing.
Prior to starting up the pump, apply barrier pressure as specified in the general arrangement
drawing.
Apply the quantities and pressures specified in the data sheet and the general arrangement
drawing.
6.1.4 Priming and venting the pump
NOTE
An excessively high oil level can lead to a temperature rise and to leakage of the fluid
handled or oil.
DANG E R
Risk of potentially explosive atmosphere inside the pump
Explosion hazard!
The pump internals in contact with the fluid to be handled, including the seal
chamber and auxiliary systems must be filled with the fluid to be handled at all
times.
Provide sufficient inlet pressure.
Provide an appropriate monitoring system.
DANG E R
Shaft seal failure caused by dry running
Hot or toxic fluid could escape!
Damage to the pump!
Before starting up the pump set, vent the pump and suction line and prime
both with the fluid to be handled.
1. Vent the pump and suction line and prime both with the fluid to be handled.
6 Commissioning/Start-up/Shutdown
Reservoir of non-
pressurised
external fluid
Double-acting
mechanical seal
External liquid feed
